Fangrui Product Details 1. S-18 Car Mini Aux Audio Adapter Wireless Bluetooth 5.0 Receiver 2. Material: Plastic Abs+pc 3. Interface Type: 3.5mm 4. Battery Capacity: 145mah 5. Music Playing Time: 8 Hours 6. Continuous Talk Time: 10 Hours 7. Bluetooth Version: 5.0 8. Output Interface: 3.5mm Stereo Plug Microphone 9. Sensitivity: -42db 10. Frequency Response: 50hz-20khz 11. Signal-to-noise Ratio: 75db 12. Distance: Can Touch 10m 13. Features: Support Connecting Earphones, Mobile Phones, Speakers And Cars 14. Connection: 50cm Usb Charging Cable 15. Aux Adapter: Can Pair And Link Your Phone Or Laptop With Your Old Car Stereohome Stereo3.5mm Wired Headphonespeaker 16. Equipped With Advanced Compatible 5.0 Chip, Stable Connection, Fast Transmission Speed And Wide Signal Range 17. With A Built-in Microphone, One Button To Answerhang Uprejectredial Calls 18. In The Fully Charged Mode, It Can Play Music Continuously For About 10 Hours 19. It Can Play Music While Charging, And It Can Be Used Easily Even When The Battery Is Low 20. Safe Driving, Compatible With 5.0 Voice Navigation 21. After The Device Is Turned On, It Will Automatically Connect To The Compatible Mobile Phone, Hands-free Callnavigation Broadcast, And Drive More Focused 22. Compatible With 5.0 And Support Long-distance Transmission Within 10 Meters 23. Press And Hold For 3 Seconds To Turn On The Phone, Turn On The Mobile Phone Compatible Receiver (s-18), Click On The Automatic Connection, The Blue Light Is On, And The Next Time You Use The Automatic Connection, The S-18 Will Automatically Shut Down 3 Minutes After The Phone Is Disconnected 24. Dimensions: 50x11.5x48mm 25. Weight: 12.6 Grams (bluetooth Receiver + 3.5mm Metal Stereo Plug)